Nate used RCP state Polls. Nate didn’t do anything but report on what someone else’s polls predicted.
Looks like state polls, are the wave of the future. Forget National polls, in an electoral college the National polls don’t mean much.
Anyone can reproduce what Nate did, just look at the right data and act like an Echo Machine.
someone has already done just that. It turns out all you need is excel and an add on called monte carlo, then you simply plug in the top lines from publically accessable polls and PRESTO! you get Nate Silvers predictions.